diff --git a/module/product/model.php b/module/product/model.php
index f496cbe4b2..50f9f173b4 100644
--- a/module/product/model.php
+++ b/module/product/model.php
@@ -1024,7 +1024,7 @@ class productModel extends model
         }
 
         $cases = $this->dao->select('story')->from(TABLE_CASE)->where('story')->in($storyIdList)->andWhere('deleted')->eq(0)->fetchAll('story');
-        $rate  = count($stories) == 0 ? 0 : round(count($cases) / $rateCount, 2);
+        $rate  = count($stories) == 0 || $rateCount == 0 ? 0 : round(count($cases) / $rateCount, 2);
 
         $storyCommon = $this->lang->storyCommon;
         if(!empty($this->config->URAndSR))
diff --git a/module/project/lang/zh-cn.php b/module/project/lang/zh-cn.php
index 21bad0d3fa..02982eaa7a 100644
--- a/module/project/lang/zh-cn.php
+++ b/module/project/lang/zh-cn.php
@@ -60,7 +60,7 @@ $lang->project->createStory   = "添加{$lang->storyCommon}";
 $lang->project->all           = '所有';
 $lang->project->undone        = '未完成';
 $lang->project->unclosed      = '未关闭';
-$lang->project->typeDesc      = "运维{$lang->projectCommon}没有{$lang->storyCommon}、bug、版本、测试功能，同时禁用燃尽图。";
+$lang->project->typeDesc      = "运维{$lang->projectCommon}没有{$lang->storyCommon}、bug、版本、测试功能。";
 $lang->project->mine          = '我负责：';
 $lang->project->other         = '其他：';
 $lang->project->deleted       = '已删除';
diff --git a/module/project/lang/zh-tw.php b/module/project/lang/zh-tw.php
index 319dbedcb5..eb1b516816 100644
--- a/module/project/lang/zh-tw.php
+++ b/module/project/lang/zh-tw.php
@@ -60,7 +60,7 @@ $lang->project->createStory   = "添加{$lang->storyCommon}";
 $lang->project->all           = '所有';
 $lang->project->undone        = '未完成';
 $lang->project->unclosed      = '未關閉';
-$lang->project->typeDesc      = "運維{$lang->projectCommon}沒有{$lang->storyCommon}、bug、版本、測試功能，同時禁用燃盡圖。";
+$lang->project->typeDesc      = "運維{$lang->projectCommon}沒有{$lang->storyCommon}、bug、版本、測試功能。";
 $lang->project->mine          = '我負責：';
 $lang->project->other         = '其他：';
 $lang->project->deleted       = '已刪除';